POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the power window regulator switch assembly. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS (Door Lock SW-Lock, Door Lock SW-Unlock)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Main Body / Data List.

   5. Read the Data List according to the display on the GTS.

      
      Body Electrical > Main Body > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Door Lock SW-Lock	Front passenger door control switch lock signal	OFF or ON	OFF: Lock side of front passenger door control switch not pushed ON: Lock side of front passenger door control switch pushed	-
      Door Lock SW-Unlock	Front passenger door control switch unlock signal	OFF or ON	OFF: Unlock side of front passenger door control switch not pushed ON: Unlock side of front passenger door control switch pushed	-

      
      Body Electrical > Main Body > Data List

      Tester Display
      Door Lock SW-Lock
      Door Lock SW-Unlock

      OK
      The GTS indicates ON or OFF according to the switch operation shown in the table.

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   NG

2. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY

   
   

   1. Remove the power window regulator switch assembly.

      Click here

   2. Inspect the power window regulator switch assembly.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY Click here

   OK

3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

   
   

   • *1: for LHD

   • *2: for RHD

   
   

   1. Disconnect the T1*1 or U1*2 power window regulator switch assembly connector.

   2. Disconnect the 3B*1 or 3A*2 driver side junction block assembly connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition T1-12 (L) - 3B-13 Always Below 1 Ω T1-7 (UL) - 3B-12 Always Below 1 Ω T1-12 (L) or 3B-13 - Other terminals and body ground Always 10 kΩ or higher T1-7 (UL) or 3B-12 - Other terminals and body ground Always 10 kΩ or higher

      Standard Resistance
      for RHD: Tester Connection Condition Specified Condition U1-12 (L) - 3A-38 Always Below 1 Ω U1-7 (UL) - 3A-39 Always Below 1 Ω U1-12 (L) or 3A-38 - Other terminals and body ground Always 10 kΩ or higher U1-7 (UL) or 3A-39 - Other terminals and body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH ASSEMBLY - BODY GROUND)

   
   
   1. 

      *A	for LHD
      *B	for RHD
      *a	Front view of wire harness connector (to Power Window Regulator Switch Assembly)

      Disconnect the power window regulator switch assembly connector.

   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition T1-5 (GND) - Body Ground Always Below 1 Ω

      Standard Resistance
      for RHD: Tester Connection Condition Specified Condition U1-5 (GND) - Body Ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) - POWER WINDOW REGULATOR SWITCH ASSEMBLY AND BODY GROUND) Click here

   OK

5. INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

   
   

   1. Remove the driver side junction block assembly.

      Click here

   2. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

   3. Measure the resistance according to the value(s) in the table below.

      

      *A	for LHD	*B	for RHD
      *a	Component without harness connected (Driver Side Junction Block Assembly)	-	-

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition A-20 (L1) - 3B-13 Always Below 1 Ω A-22 (UL1) - 3B-12 Always Below 1 Ω

      Standard Resistance
      for RHD: Tester Connection Condition Specified Condition A-20 (L1) - 3A-38 Always Below 1 Ω A-22 (UL1) - 3A-39 Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   NG

   REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY Click here

6. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) - POWER WINDOW REGULATOR SWITCH ASSEMBLY AND BODY GROUND)

   
   

   • *1: for LHD

   • *2: for RHD

   
   

   1. Disconnect the R9*1 or S9*2 front multiplex network door ECU (for Front Passenger Door) connector.

   2. Disconnect the T1*1 or U1*2 power window regulator switch assembly connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition R9-9 (SGND) - T1-5 (GND) Always Below 1 Ω R9-1 (GND) - Body ground Always Below 1 Ω R9-9 (SGND) or T1-5 (GND) - Other terminals and body ground Always 10 kΩ or higher

      Standard Resistance
      for RHD: Tester Connection Condition Specified Condition S9-9 (SGND) - U1-5 (GND) Always Below 1 Ω S9-1 (GND) - Body ground Always Below 1 Ω S9-9 (SGND) or U1-5 (GND) - Other terminals and body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR